With that in mind, I've been doing some digging around in the TreeHugger archives since we often write about rad projects, and I found 10 crafts with a geeky edge that are all pretty darn cheap.

The Computer Kit Touch follows the same playbook used by the previous Kano kits. Users — almost always small children — have to build their computer by following a step-by-step storybook.

Kano, makers of DIY computer and coding kits that help children learn about technology, has launched a new version of its computer kit that adds a touchscreen to the mix.

But that takes nothing away from the complexity of building a processor from parts. Even a simple one can take months, often years, to put together. One of the first to do a DIY processor was Bill ...